Reaming machine

ABSTRACT

A reaming machine comprises a machine body; a retractable fixture installed above the machine body, and used to press against a workpiece and fix the workpiece; and a vertical wall, disposed inside the machine body. Two slide rods are installed to the vertical wall. A slide seat is slidably coupled to two slide rods. A driving source is fixed to the slide seat. A piston rod is installed to the bottom of the slide seat. A hydraulic cylinder enables the piston rod to move telescopically. The piston rod further enables the driving source to move up and down. A tool seat is installed to the driving source. A reamer is installed at the top of the tool seat and can ream a hole on the workpiece. As the reamed hole faces downward, the wooden dust and debris generated in reaming will fall into the interior of the machine body.

FIELD OF THE INVENTION

The present invention relates a reaming machine, particularly to a reaming machine, which can prevent debris from being dispersed into the air via extending a reamer upward from the interior of the machine body to ream the workpiece disposed above.

BACKGROUND OF THE INVENTION

Generally, when the operator intends to ream a hole on a workpiece, he will place the workpiece on the machine table of a reaming machine and fasten the workpiece with a fixture. The reamer is installed above the machine table and can descend to ream the workpiece. When the fast-rotating reamer is reaming a hole on the workpiece, the reamer jets out much wooden debris and dust. Thus, the operator has to wear a pair of goggles to protect his eyes. However, the wooden debris and dust dispersed to the air is hard to collect. Consequently, the operator will inhale a lot of wooden debris and dust, which will affect the health of the operator in the long run. Besides, cleaning wooden debris and dust depositing everywhere in the factory is a laborious and time-consuming working.

With many years' experience in fabricating and selling related products, the inventor had endeavored to study and research reaming machines and finally invented a superior-utility reaming machine, which can solve the problems of dust collection and air pollution occurring in the conventional reaming machine.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide reaming machine, which comprises: a hollow machine body; a fixture, installed above the machine table of the machine body, and able to descend and press against a workpiece; and a vertical wall, disposed inside the machine body. Two slide rods are respectively installed in the left side and the right side of the vertical wall. A slide seat is slidably coupled to those two slide rods. A driving source is fixed to the slide seat, and a piston rod is installed to the bottom of the slide seat. A hydraulic cylinder enables the piston rod to move telescopically, and the piston rod further enables the driving source to move up and down. A tool seat is installed at the top of the driving source, and a rotatable reamer is installed at the top of the tool seat. The tool seat can raise the reamer upward to ream a hole on the workpiece. As the reamed hole faces downward, the wooden dust and debris generated in reaming will fall into the interior of the machine body. Thus, the wooden dust and debris can be easily collected, and air pollution can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view schematically showing a preferred embodiment of the present invention.

FIG. 2A is a perspective exploded view of a preferred embodiment of the present invention.

FIG. 2B is an enlarged perspective exploded view of a portion of elements shown in FIG. 2A.

FIG. 3 is a partial perspective view of a preferred embodiment of the present invention.

FIG. 4 is a diagram schematically showing the operation of a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Refer to FIG. 1, FIG. 2A, and FIG. 2B. The reaming machine of the present invention comprises: a machine body 10, a fixture 20, a vertical wall 30, and an adjust unit 36. The abovementioned parts and the operation procedures of the reaming machine of the present invention are to be described in detail below.

The machine 10 is a hollow structure with an about rectangular section. A machine table 11 is horizontally disposed above the machine body 10. A pair of slide ways 111 is formed in the rear side of the machine table 11. A clamping unit 12 is installed above the pair of slide ways 111, and two rotary fixing handle 121 are respectively installed in the left side and the right side of the top of the clamping unit 12. A screw 124 is installed to the lower end of the rotary fixing handle 121 and penetrates the clamping unit 12. The lower end of the screw 124 has a nut larger than the screw 124, and the nut is to be pressed against the slide way 111. The user can rotate the rotary fixing handles 121 to make the nuts tightly press against the slide ways 111, and the clamping unit 12 is thus fixed at a predetermined position in the front-rear direction. The clamping unit 12 has a clamping slot 122 disposed along the left-right direction. The machine table 11 also has a rectangular through-hole 123.

Refer to FIG. 4. The fixture 20 is a hydraulic cylinder installed above the machine table 11. The hydraulic cylinder has a handle 21 at the top thereof and a press head 22 at the bottom thereof. The user can operates the handle 21 to lower the press head 22, and a workpiece a is thus pressed tightly.

Refer to FIG. 3. The vertical wall 30 is fastened to the internal wall of the machine body 10. Two slide rods 31 are respectively installed in the left side and the right side of the vertical wall 30. A slide seat 32 is slidably coupled to those two slide rods 31. The slide seat 32 is a plate-like structure with an about U-shape section. A driving source 33 (such as a motor) is installed to one side of the slide seat 33, and a hydraulic cylinder 34 is installed near the bottom of the slide seat 32. A piston rod 341, which can move up and down, interconnects the top of the hydraulic cylinder 34 and the bottom of the slide seat 32. A tool seat 35 is installed at the top of the driving source 33, and a rotatable reamer 351 is installed at the top of the tool seat 35. Further, a through-holed lug 321 extends from one side of the slide seat 32.

The adjust unit 36 has a U-shape lug 361 with its opening facing outward. Two horizontal wedge-shape plates 362 are respectively installed to the upper end and the lower end of the lug 361, and a vertical plate 363 is used to connect those two wedge-shape plates 362, and the vertical plate 363 is fixed to one side of the vertical wall 30. A screw 364 is vertically installed in between those two wedge-shape plates 362 and penetrates the through-holed lug 321 extending from one side of the slide seat 32. Two adjust knobs 365 are respectively installed screwedly to the upper side and the lower side of the screw 364. Two screws 366, which penetrate the upper and lower wedge-shape plates 362 of the U-shape plate 361, are respectively screwed into the threaded holes at the top and the bottom of the screw 364, and the screw 364 is thus fixed to the U-shape lug 361.

Refer to FIG. 4 for the operation of the reaming machine of the present invention. Firstly, the rotary fixing handles 121 at the top of the clamping unit 12 are rotated to loosen the screws 124, and next, the clamping unit 12 is moved to an appropriate position. Next, the to-be-reamed surface of a workpiece a (such as a wooden plate) is faced downward and disposed on the machine table 11. Next, the rear end of the workpiece a is inserted into the clamping slot 122 of the clamping unit 12; thus, the to-be-reamed area of the workpiece a is located within the through-hole 123 of the machine table 11. Next, the user press down the handle 21 of the fixture 20; then, the press head 22 is lowered to tightly press against the workpiece a, and the workpiece a is thus fixed.

Next, the user controls the hydraulic cylinder 34 to extend the piston rod 341 upward, and the driving source 33 is also pushed upward. Next, the tool seat 35 at the top of the driving source 33 drives the reamer 351 to ream a hole on the workpiece a. As the reamed hole faces downward, the wooden dust and debris generated in reaming will fall into the interior of the machine body 10. Therefore, the wooden dust and debris can be easily collected, and air pollution can be prevented. Further, as the workpiece a can cover the through-hole 123 of the machine table 11, the wooden dust and debris is unlikely to jet out and hurt the eyes of the user.

Further, the user can rotate two adjust knobs 365 on the screw 364 of the adjust unit 36 to modify the distance between those two adjust knob 365. Thus, the vertical travel of the slide seat 32 can be adjusted, and the rising distance of the reamer 351 can also be controlled.

The samples of the present invention have been fabricated according to the specification and drawings and tested repeatedly. The test results have proved that the present invention can indeed achieve the anticipated objectives and efficacies. Therefore, the utility of the present invention is undoubtful. Further, none similar product has been found in the market or the published data up to the filing date. Accordingly, the inventor submits the patent application for the present invention.

Those described above are only the preferred embodiments to clarify the present invention. However, it is not intended to limit the scope of the present invention, and any equivalent modification and variation according to the spirit of the present invention is to be also included within the scope of the present invention. 

1. A reaming machine, comprising: a machine body, being hollow, and having a machine table with a through-hole; a fixture, installed above said machine table, having a handle at the top thereof used to control a press head at the bottom of said fixture to descend and press against the top surface of a workpiece; and a vertical wall, installed in the interior of said machine body, and including: two slide rods, respectively disposed in the left side and the right side thereof; a slide seat, slidably connected to said two slide rods; a driving source, fixed to one side of said slide seat; a hydraulic cylinder, installed near the bottom of said slide seat; a piston rod, being vertically retractable, disposed at the top of said hydraulic cylinder with the top thereof connected to said slide seat; a tool seat, disposed at the top of said driving source; and a reamer, being rotatable, and installed to said tool seat.
 2. The reaming machine according to claim 1, wherein said driving source is a motor and said fixture is a hydraulic cylinder.
 3. The reaming machine according to claim 1, wherein two slide ways are installed in the rear side of said machine table and arranged in the front-rear direction; a clamping unit is installed above said two slide ways, and a clamping slot is formed in the front side of said clamping unit and used to clamp the rear end of a workpiece; two rotary fixing handle are respectively installed in the left side and the right side of the top of said clamping unit; two screws penetrate the bottom of said clamping unit, and the top of said screw is installed screwedly to said rotary fixing handle, and the bottom of said screw has a nut larger than said screw and pressing against said slide way.
 4. The reaming machine according to claim 1, wherein said machine body is a hollow rectangular column, and said vertical wall is fastened to a wall inside said machine body.
 5. The reaming machine according to claim 1, wherein a through-holed lug extends from one side of the slide seat; an adjust unit is installed to one side of said vertical wall; said adjust unit includes: a lug with its opening facing outward; two horizontal plates, respectively installed to the upper end and the lower end of said lug; a vertical plate, used to connect said two plates, and fixed to said vertical wall; a screw, vertically installed in between said two plates, and penetrating said through-holed lug of said slide seat; and two adjust knobs, respectively installed screwedly to the upper side and the lower side of said screw. 